[src/ad-namecache]: src/sys/sys Regen.

[ad <ad%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7cfb85f99eee
branches:  ad-namecache
changeset: 982977:7cfb85f99eee
user:      ad <ad%NetBSD.org@localhost>
date:      Wed Jan 08 11:02:35 2020 +0000

description:
Regen.

diffstat:

 sys/rump/include/rump/rump_namei.h |   4 +-
 sys/sys/namei.h                    |  54 ++++++++++++++++++-------------------
 2 files changed, 28 insertions(+), 30 deletions(-)

diffs (113 lines):

diff -r 6f4da6b6e4cd -r 7cfb85f99eee sys/rump/include/rump/rump_namei.h
--- a/sys/rump/include/rump/rump_namei.h        Wed Jan 08 11:02:16 2020 +0000
+++ b/sys/rump/include/rump/rump_namei.h        Wed Jan 08 11:02:35 2020 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: rump_namei.h,v 1.37 2020/01/06 11:23:31 ad Exp $       */
+/*     $NetBSD: rump_namei.h,v 1.37.2.1 2020/01/08 11:02:35 ad Exp $   */
 
 
 /*
  * WARNING: GENERATED FILE.  DO NOT EDIT
  * (edit namei.src and run make namei in src/sys/sys)
  *   by:   NetBSD: gennameih.awk,v 1.5 2009/12/23 14:17:19 pooka Exp 
- *   from: NetBSD: namei.src,v 1.47 2020/01/06 11:22:33 ad Exp 
+ *   from: NetBSD: namei.src,v 1.47.2.1 2020/01/08 11:02:16 ad Exp 
  */
 
 #ifndef _RUMP_RUMP_NAMEI_H_
diff -r 6f4da6b6e4cd -r 7cfb85f99eee sys/sys/namei.h
--- a/sys/sys/namei.h   Wed Jan 08 11:02:16 2020 +0000
+++ b/sys/sys/namei.h   Wed Jan 08 11:02:35 2020 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: namei.h,v 1.103 2020/01/06 11:23:31 ad Exp $   */
+/*     $NetBSD: namei.h,v 1.103.2.1 2020/01/08 11:02:35 ad Exp $       */
 
 
 /*
  * WARNING: GENERATED FILE.  DO NOT EDIT
  * (edit namei.src and run make namei in src/sys/sys)
  *   by:   NetBSD: gennameih.awk,v 1.5 2009/12/23 14:17:19 pooka Exp 
- *   from: NetBSD: namei.src,v 1.47 2020/01/06 11:22:33 ad Exp 
+ *   from: NetBSD: namei.src,v 1.47.2.1 2020/01/08 11:02:16 ad Exp 
  */
 
 /*
@@ -196,42 +196,38 @@
 #endif
 
 #ifdef __NAMECACHE_PRIVATE
+#include <sys/rbtree.h>
+
 /*
  * For simplicity (and economy of storage), names longer than
  * a maximum length of NCHNAMLEN are stored in non-pooled storage.
  */
-#define        NCHNAMLEN       32      /* up to this size gets stored in pool */
+#define        NCHNAMLEN       sizeof(((struct namecache *)NULL)->nc_name)
 
 /*
  * Namecache entry.  
- * This structure describes the elements in the cache of recent
- * names looked up by namei.
  *
- * Locking rules:
+ * This structure describes the elements in the cache of recent names looked
+ * up by namei.  It's carefully sized to take up 128 bytes on _LP64, to make
+ * good use of space and the CPU caches.
  *
- *      -       stable after initialization
- *      L       namecache_lock
- *      C       struct nchcpu::cpu_lock
- *      L/C     insert needs L, read needs L or any C,
- *              must hold L and all C after (or during) delete before free
- *      N       struct namecache::nc_lock
+ * Field markings and their corresponding locks:
+ *
+ * -  stable throught the lifetime of the namecache entry
+ * d  protected by nc_dvp->vi_nclock
+ * l  protected by cache_list_lock
  */
 struct namecache {
-       LIST_ENTRY(namecache) nc_hash;  /* L/C hash chain */
-       TAILQ_ENTRY(namecache) nc_lru;  /* L pseudo-lru chain */
-       LIST_ENTRY(namecache) nc_dvlist;/* L dvp's list of cache entries */
-       LIST_ENTRY(namecache) nc_vlist; /* L vp's list of cache entries */
-       struct  vnode *nc_dvp;          /* N vnode of parent of name */
-       struct  vnode *nc_vp;           /* N vnode the name refers to */
-       void    *nc_gcqueue;            /* N queue for garbage collection */
-       kmutex_t nc_lock;               /*   lock on this entry */
-       int     nc_hittime;             /* N last time scored a hit */
-       int     nc_flags;               /* - copy of componentname ISWHITEOUT */
-       u_short nc_nlen;                /* - length of name */
-       char    nc_name[0];             /* - segment name */
+       struct rb_node nc_node;         /* d  red-black tree node */
+       TAILQ_ENTRY(namecache) nc_lru;  /* l  pseudo-lru chain */
+       TAILQ_ENTRY(namecache) nc_vlist;/* l  vp's list of cache entries */
+       struct  vnode *nc_dvp;          /* -  vnode of parent of name */
+       struct  vnode *nc_vp;           /* -  vnode the name refers to */
+       int     nc_hittime;             /* d  approx time of last hit */
+       u_short nc_nlen;                /* -  length of name */
+       bool    nc_whiteout;            /* -  true if a whiteout */
+       char    nc_name[49];            /* -  segment name */
 };
-__CTASSERT((sizeof(struct namecache) + NCHNAMLEN)
-    % __alignof(struct namecache) == 0);
 #endif
 
 #ifdef _KERNEL
@@ -297,11 +293,13 @@
 int    cache_revlookup(struct vnode *, struct vnode **, char **, char *);
 void   cache_enter(struct vnode *, struct vnode *,
                        const char *, size_t, uint32_t);
+void   cache_vnode_init(struct vnode * );
+void   cache_vnode_fini(struct vnode * );
+void   cache_cpu_init(struct cpu_info *);
+
 void   nchinit(void);
-void   nchreinit(void);
 void   namecache_count_pass2(void);
 void   namecache_count_2passes(void);
-void   cache_cpu_init(struct cpu_info *);
 void   cache_purgevfs(struct mount *);
 void   namecache_print(struct vnode *, void (*)(const char *, ...)
     __printflike(1, 2));